5. It would be lovely but that time has not arrived yet

Critical mass has not been reached yet. Too many people out there still have amazingly skewed views on LGBTQ people. So for now, pointing out accomplished & successful Gay people helps to dispel prejudice...plus it will give confidence to other LBGTQ people to come out, further dispelling prejudice. It becomes a snowball effect and soon it will be just like you said. No one will care so it won't even be mentioned anymore....and yes, that will be lovely.